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<?php /** * Style Engine: WP_Style_Engine_CSS_Rule class * * @package WordPress * @subpackage StyleEngine * @since 6.1.0 / /* * Core class used for style engine CSS rules. * * Holds, sanitizes, processes, and prints CSS declarations for the style engine. * * @since 6.1.0 / #[AllowDynamicProperties] class WP_Style_Engine_CSS_Rule { /* * The selector. * * @since 6.1.0 * @var string / protected $selector; /* * The selector declarations. * * Contains a WP_Style_Engine_CSS_Declarations object. * * @since 6.1.0 * @var WP_Style_Engine_CSS_Declarations / protected $declarations; /* * A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. * * @since 6.6.0 * @var string / protected $rules_group; /* * Constructor. * * @since 6.1.0 * @since 6.6.0 Added the `$rules_group` parameter. * * @param string $selector Optional. The CSS selector. Default empty string. * @param string[]\|WP_Style_Engine_CSS_Declarations $declarations Optional. An associative array of CSS definitions, * e.g. `array( "$property" => "$value", "$property" => "$value" )`, * or a WP_Style_Engine_CSS_Declarations object. * Default empty array. * @param string $rules_group A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. / public function __construct( $selector = '', $declarations = array(), $rules_group = '' ) { $this->set_selector( $selector ); $this->add_declarations( $declarations ); $this->set_rules_group( $rules_group ); } /* * Sets the selector. * * @since 6.1.0 * * @param string $selector The CSS selector. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. / public function set_selector( $selector ) { $this->selector = $selector; return $this; } /* * Sets the declarations. * * @since 6.1.0 * * @param string[]\|WP_Style_Engine_CSS_Declarations $declarations An array of declarations (property => value pairs), * or a WP_Style_Engine_CSS_Declarations object. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. / public function add_declarations( $declarations ) { $is_declarations_object = ! is_array( $declarations ); $declarations_array = $is_declarations_object ? $declarations->get_declarations() : $declarations; if ( null === $this->declarations ) { if ( $is_declarations_object ) { $this->declarations = $declarations; return $this; } $this->declarations = new WP_Style_Engine_CSS_Declarations( $declarations_array ); } $this->declarations->add_declarations( $declarations_array ); return $this; } /* * Sets the rules group. * * @since 6.6.0 * * @param string $rules_group A parent CSS selector in the case of nested CSS, or a CSS nested @rule, * such as `@media (min-width: 80rem)` or `@layer module`. * @return WP_Style_Engine_CSS_Rule Returns the object to allow chaining of methods. / public function set_rules_group( $rules_group ) { $this->rules_group = $rules_group; return $this; } /* * Gets the rules group. * * @since 6.6.0 * * @return string / public function get_rules_group() { return $this->rules_group; } /* * Gets the declarations object. * * @since 6.1.0 * * @return WP_Style_Engine_CSS_Declarations The declarations object. / public function get_declarations() { return $this->declarations; } /* * Gets the full selector. * * @since 6.1.0 * * @return string / public function get_selector() { return $this->selector; } /* * Gets the CSS. * * @since 6.1.0 * @since 6.6.0 Added support for nested CSS with rules groups. * * @param bool $should_prettify Optional. Whether to add spacing, new lines and indents. * Default false. * @param int $indent_count Optional. The number of tab indents to apply to the rule. * Applies if `prettify` is `true`. Default 0. * @return string */ public function get_css( $should_prettify = false, $indent_count = 0 ) { $rule_indent = $should_prettify ? str_repeat( "\t", $indent_count ) : ''; $nested_rule_indent = $should_prettify ? str_repeat( "\t", $indent_count + 1 ) : ''; $declarations_indent = $should_prettify ? $indent_count + 1 : 0; $nested_declarations_indent = $should_prettify ? $indent_count + 2 : 0; $suffix = $should_prettify ? "\n" : ''; $spacer = $should_prettify ? ' ' : ''; // Trims any multiple selectors strings. $selector = $should_prettify ? implode( ',', array_map( 'trim', explode( ',', $this->get_selector() ) ) ) : $this->get_selector(); $selector = $should_prettify ? str_replace( array( ',' ), ",\n", $selector ) : $selector; $rules_group = $this->get_rules_group(); $has_rules_group = ! empty( $rules_group ); $css_declarations = $this->declarations->get_declarations_string( $should_prettify, $has_rules_group ? $nested_declarations_indent : $declarations_indent ); if ( empty( $css_declarations ) ) { return ''; } if ( $has_rules_group ) { $selector = "{$rule_indent}{$rules_group}{$spacer}{{$suffix}{$nested_rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$nested_rule_indent}}{$suffix}{$rule_indent}}"; return $selector; } return "{$rule_indent}{$selector}{$spacer}{{$suffix}{$css_declarations}{$suffix}{$rule_indent}}"; } }

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